EP3779141A8 - Combustion chamber structure of internal combustion engine - Google Patents

Combustion chamber structure of internal combustion engine Download PDF

Info

Publication number
EP3779141A8
EP3779141A8 EP18914383.7A EP18914383A EP3779141A8 EP 3779141 A8 EP3779141 A8 EP 3779141A8 EP 18914383 A EP18914383 A EP 18914383A EP 3779141 A8 EP3779141 A8 EP 3779141A8
Authority
EP
European Patent Office
Prior art keywords
chamber structure
combustion engine
internal combustion
combustion chamber
internal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP18914383.7A
Other languages
German (de)
French (fr)
Other versions
EP3779141A4 (en
EP3779141A1 (en
Inventor
Takuma Suzuki
Taisuke Shiraishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renault SAS
Nissan Motor Co Ltd
Original Assignee
Renault SAS
Nissan Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renault SAS, Nissan Motor Co Ltd filed Critical Renault SAS
Publication of EP3779141A1 publication Critical patent/EP3779141A1/en
Publication of EP3779141A4 publication Critical patent/EP3779141A4/en
Publication of EP3779141A8 publication Critical patent/EP3779141A8/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
    • F02B23/104—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder the injector being placed on a side position of the cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
    • F02B23/104—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder the injector being placed on a side position of the cylinder
    • F02B23/105—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder the injector being placed on a side position of the cylinder the fuel is sprayed directly onto or close to the spark plug
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
    • F02B2023/102—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder the spark plug being placed offset the cylinder centre axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
    • F02B2023/106—Tumble flow, i.e. the axis of rotation of the main charge flow motion is horizontal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
    • F02B2023/108—Swirl flow, i.e. the axis of rotation of the main charge flow motion is vertical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/48—Tumble motion in gas movement in cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
    • F02B23/101—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder the injector being placed on or close to the cylinder centre axis, e.g. with mixture formation using spray guided concepts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/242—Arrangement of spark plugs or injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/241—Cylinder heads specially adapted to pent roof shape of the combustion chamber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

A combustion chamber structure for an internal combustion engine includes a recessed portion formed in a pent roof of a cylinder head on an upstream side of a tumble flow with respect to a spark plug.
EP18914383.7A 2018-04-10 2018-04-10 Combustion chamber structure of internal combustion engine Pending EP3779141A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2018/000681 WO2019197860A1 (en) 2018-04-10 2018-04-10 Combustion chamber structure of internal combustion engine

Publications (3)

Publication Number Publication Date
EP3779141A1 EP3779141A1 (en) 2021-02-17
EP3779141A4 EP3779141A4 (en) 2021-03-31
EP3779141A8 true EP3779141A8 (en) 2021-03-31

Family

ID=68163508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18914383.7A Pending EP3779141A4 (en) 2018-04-10 2018-04-10 Combustion chamber structure of internal combustion engine

Country Status (5)

Country Link
US (1) US11346276B2 (en)
EP (1) EP3779141A4 (en)
JP (1) JPWO2019197860A1 (en)
CN (1) CN111954755B (en)
WO (1) WO2019197860A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7118943B2 (en) * 2019-11-21 2022-08-16 本田技研工業株式会社 internal combustion engine
CN116378814B (en) * 2023-06-07 2023-09-15 潍柴动力股份有限公司 Combustion chamber, engine and design method of combustion chamber

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MX174016B (en) * 1989-06-29 1994-04-14 Orbital Eng Pty INTERNAL COMBUSTION ENGINE
US5127379A (en) * 1990-06-26 1992-07-07 Toyota Jidosha Kabushiki Kaisha Internal combustion engine
JPH0711960A (en) * 1993-01-27 1995-01-13 Toyota Motor Corp Internal combustion engine
JP3333298B2 (en) * 1993-12-30 2002-10-15 ヤマハ発動機株式会社 In-cylinder fuel injection type multi-cylinder engine
DE19546945C2 (en) * 1995-12-15 2003-04-30 Daimler Chrysler Ag Direct injection internal combustion engine
JP3148617B2 (en) * 1996-01-30 2001-03-19 三菱自動車工業株式会社 In-cylinder injection spark ignition internal combustion engine
US5960767A (en) * 1996-02-09 1999-10-05 Fuji Jukogyo Kabushiki Kaisha Combustion chamber of in-cylinder direct fuel injection engine
JP2001526753A (en) * 1996-03-19 2001-12-18 アウトボード・マリン・コーポレーション 2-cycle engine piston hollow structure
JP3763491B2 (en) * 1996-10-08 2006-04-05 富士重工業株式会社 Combustion chamber structure of in-cylinder injection engine
DE19643886C2 (en) * 1996-10-30 2002-10-17 Ficht Gmbh & Co Kg Method for operating an internal combustion engine
JP3743895B2 (en) * 1996-10-31 2006-02-08 富士重工業株式会社 In-cylinder injection engine
JP3743896B2 (en) * 1996-10-31 2006-02-08 富士重工業株式会社 In-cylinder injection engine
JP4108806B2 (en) * 1997-02-10 2008-06-25 富士重工業株式会社 Combustion chamber structure of in-cylinder direct injection spark ignition engine
JPH10317974A (en) * 1997-05-23 1998-12-02 Mitsubishi Motors Corp Direct injection type internal combustion engine
JPH11148355A (en) * 1997-11-14 1999-06-02 Mazda Motor Corp In-cylinder injection type spark ignition engine
JP4026784B2 (en) * 1998-01-08 2007-12-26 富士重工業株式会社 In-cylinder injection engine
AT2538U1 (en) * 1998-01-13 1998-12-28 Avl List Gmbh INTERNAL COMBUSTION ENGINE WITH AT LEAST ONE INJECTION DEVICE PER CYLINDER
US6357402B1 (en) * 1998-04-06 2002-03-19 Sanshin Kogyo Kabushiki Kaisha Direct injected engine for outboard motor
SE519775C2 (en) * 1998-05-14 2003-04-08 Volvo Car Corp Internal combustion engine
JP3644255B2 (en) * 1998-06-03 2005-04-27 スズキ株式会社 Combustion chamber structure of internal combustion engine
DE19835563A1 (en) * 1998-08-06 2000-02-10 Volkswagen Ag Four-stroke internal combustion engine with direct injection
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JP3852310B2 (en) 2000-08-07 2006-11-29 トヨタ自動車株式会社 In-cylinder injection spark ignition internal combustion engine
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JP4397199B2 (en) * 2003-08-29 2010-01-13 本田技研工業株式会社 In-cylinder internal combustion engine
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JP2015218621A (en) 2014-05-15 2015-12-07 トヨタ自動車株式会社 Combustion chamber structure of internal combustion engine
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JP6056840B2 (en) * 2014-12-25 2017-01-11 マツダ株式会社 Combustion chamber structure of direct injection engine
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Also Published As

Publication number Publication date
US20210115841A1 (en) 2021-04-22
US11346276B2 (en) 2022-05-31
EP3779141A4 (en) 2021-03-31
EP3779141A1 (en) 2021-02-17
JPWO2019197860A1 (en) 2021-03-11
WO2019197860A1 (en) 2019-10-17
CN111954755B (en) 2022-09-20
CN111954755A (en) 2020-11-17

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Owner name: NISSAN MOTOR CO., LTD.

Owner name: RENAULT S.A.S.

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